Design idea.

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Re: Design idea.

You're correct.

[dlneubec]

Re: Design idea.

Thanks.
Just realized, after some googling on the sb12 that my choices have lead me to the Sapronos.

I could be wrong, but I thought the Sopranos used the single magnet SB12, not the dual magnet one I used (SB12mnrx25-04)

[dlneubec]

Re: Design idea.

Dan. It looks like it would do well in just 5Liters. Qtc .62. Agree?

Depends on the Series R you use, and the Qa setting. With a Series R of .3 and a Qa of 10, I'm getting about .68

[[email protected]]

Re: Design idea.

Thanks.
Just realized, after some googling on the sb12 that my choices have lead me to the Sapronos.

[jhollander]

Re: Design idea.

Not that you would but there’s an all RS design here, RS180P, RS100P and a ND tweeter

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Re: Design idea.

Double post, again!

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Re: Design idea.

Dan. It looks like it would do well in just 5Liters. Qtc .62. Agree?

[dlneubec]

Re: Design idea.

Dan, it seems like the dip around 1800 would combine with baffle diffraction and really dip. Am I mistaken?

I did not find that to be the case in my Proximity design. It measured +-1 from 200hz-18khz, with the exception of a -2db dip in the 3.5khz range. I probably have some measurements on one of my computers, if I saved them.

[S7910]

Re: Design idea.

What is sc90?

The vifa you originally linked.

Having used it in a project or two, I'd actually vote for the TB marty suggested over the vifa.

[donradick]

Re: Design idea.

RS and ES 180 are 7". Think I will stay with the Rs180p and SB26. Just have to decide on a mid.

What is sc90?

I'm pretty sure he was referring to the original tweeter - vifa XT25sc90
I just bought a pair for a small 3 way design, but that'll be down the road a couple of months.

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Re: Design idea.

I like the SC90's over that TB 847. Keep it, Lowell, if you don't go OT19.

If I were to do a mini-3-way like this, I would be hoping for a 7" woofer, but if it all won't fit, you have your compromise.
Later,
Wolf

RS and ES 180 are 7". Think I will stay with the Rs180p and SB26. Just have to decide on a mid.

What is sc90?

[[email protected]]

Re: Design idea.

Lowell,
The SB12MNRX are very nice little midwoofers. Sound great, easy to work with and not too expensive. Zaph has a test of them on his site if you want to see distortion, CSD, etc.
http://meniscusaudio.com/sb-sb12mnrx254-p-1401.html

Dan

Dan, it seems like the dip around 1800 would combine with baffle diffraction and really dip. Am I mistaken?

[johnnyrichards]

Re: Design idea.

I did not. Pretty typical execution except for some extra components to get the midrange on the SB midwoofer to not sound crappy.

[donradick]

Re: Design idea.

Johnny -

That little 2 way is just so beautiful! Did you ever do a writeup on it?

My $0.03... The ring radiator is a good idea, but I would personally feel more comfortable using the 3/4" flangeless in a shallow waveguide. It is just a better model all around IMHO. Another alternative, as suggested by others, is the little SB... but give the new CSS tweeters a look as well. I used them in the bookshelf speakers I demoed at DDIY, and found them to be juuuuust fine.

(just because I still like how they turned out)



Lowell, this looks like you have the simmerings of what could be a very nice little 3-way. Hope to see this come to fruition!

[dlneubec]

Re: Design idea.

Lowell,
The SB12MNRX are very nice little midwoofers. Sound great, easy to work with and not too expensive. Zaph has a test of them on his site if you want to see distortion, CSD, etc.
http://meniscusaudio.com/sb-sb12mnrx254-p-1401.html

Dan